False; shaking hands is not dangerous unless you both have open wounds and there is an opportunity for blood transfer & HIV/AIDS cannot be transferred through saliva, so no barriers are needed.
Answer:
the medication was used incorrectly by the patient
Answer:
Actinic keratosis
Explanation:
This is a typical description of actinic keratosis. Actinic keratosis may be easier to feel than to see. If left untreated, approximately 1% of cases can develop into squamous cell carcinoma.